Implausibly, this elusive nocturnal animal has somehow survived in Bangalore, a mushrooming megacity of 10 million people. But a catastrophic loss of trees in what was formerly known as India’s ‘garden city’ threatens their future

Drain covers mark the entrances to underground tunnels and shafts that shift utilities around the urban environment. While most are plain and functional, many cities add a touch of local flair to brighten up the streets beneath our feet

Motorists woke up one mid-70s morning to find new one-way streets made direct crosstown journeys impossible by car. Forty years later Groningen boasts two-thirds of all trips made by bike … and the cleanest air of any big Dutch city

A decade after Hurricane Katrina flooded huge areas of New Orleans, some neighbourhoods remain blighted by abandoned homes, schools and factories. Photographer Seph Lawless, who specialises in documenting the ruins of forgotten America, paid a visit

A decade after Hurricane Katrina flooded huge areas of New Orleans, some neighbourhoods remain blighted by abandoned homes, schools and factories. Photographer Seph Lawless, who specialises in documenting the ruins of forgotten America, paid a visit

A decade after Hurricane Katrina devastated New Orleans, David Uberti goes in search of the people who were at the heart of its recovery, to understand what the city has gone through – and where it might be heading

Kuwait City, Karachi and the Iranian city of Ahvaz all experience some of the highest temperatures in the world. Such extreme heat, combined with poor air quality and planning, can have grave effects, especially for their poorest residents

The London is Changing project is bringing the voices of those affected by the housing crisis to the city’s billboards – and our readers have been involved. Here are some of their stories: from the optimistic to the heartbroken

Colin O’Brien has been photographing the lives of Londoners since 1948, capturing both change and continuity in the life of the capital. His book London Life records the final moments before transformation took place in the city

When it opened on 15 May 1935, the Moscow metro was a subterranean Communist paradise: its chandeliers, marble, intricate mosaics and heroic statues created an opulent space that was accessible for the city’s workers. Eighty years on it transports up to nine million people a day, with expansion plans set to make it the world’s fourth largest subway system by 2020

The heavyweight world championship showdown between Muhammad Ali and George Foreman electrified a city full of pride and promise in the early years following independence – and then the money ran out …